How do I know what pitch prop I need for my boat?

How do I know what pitch prop I need for my boat?

A lower pitched propeller will create more power due to more engine RPMs, but the boat will move slower. A higher pitched prop allows the boat to move faster by travelling a farther distance with each rotation. When choosing a propeller, choose a pitch that will keep the engine RPM in its recommended operating range.

What is the pitch on an outboard motor prop?

Propeller pitch is the distance the prop would move forward in one rotation if it were moving through a soft solid—think of a screw being turned into wood. The blades on a propeller are analogous to the threads on a screw.

What does a 21-pitch prop do?

The Mercury manual defines pitch as “the distance a propeller would move in one revolution if it were moving through a soft solid, like a screw through wood.” For example, a 21-pitch prop would move forward 21″ in one revolution. The lower the pitch, the better the holeshot.

What is the difference between a 19 pitch and a 21-pitch prop?

A simple explanation of prop pitch indicates that a 21-pitch prop, if turning in a thick substance, will push your boat forward 21 inches for every revolution of the blades. Conversely, a 19-pitch propeller would move your boat forward 19 inches.

What is the model year of the Mercury propeller?

MERCURY PROPELLER APPLICATION 8/9.9 (4‑Stroke) Model Year 2005 and newer 12 Tooth Spline Standard Gearcase Only Forward Thrust Washer (Std. gearcase) 803743002 Aft Washer (Std. gearcase) 12‑16146 Prop Nut 11‑16147 Flo‑Torq I Round Rubber Hub 897453T Cotter Pin 18‑815026

How many HP is a Mercury outboard motor?

Mercury/Mariner 9.9 ‑ 20 HP (4‑Stroke) Outboards Mercury/Mariner 25/30 Hp (4‑Stroke) Outboard MERCURY PROPELLER APPLICATION

How many horsepower is a mariner thruster motor?

Mercury/Mariner Thruster Electric Fishing Motors Mercury/Mariner 4 ‑ 6 Hp Outboard Mercury/Mariner 2.5 ‑ 3.5 Hp Outboard MERCURY PROPELLER APPLICATION

How many horsepower is a 2 stroke prop nut?

6 ‑ 8 ‑ 9.9 & 15 HP (2‑Stroke) 9.9 (4‑Stroke) 1995‑2004 15 (4‑Stroke) thru 2007 SeaPro/Marathon 10‑15 HP 8 Tooth Spline Flo‑Torq I Round Rubber Hub = 827598T Prop Nut Kit 11‑13914A 2